satisfying a never ending demand

I've been helping my brother with his wedding invitation design. Many days have already passed and we still have not come up yet with the final design. He gets too fussy about the minute details and I have to do it all over again. His designs end up looking like a graduation certificate..ugghhh..if this goes on, the invitations will be sent out late. I have to finish this once in for all.

I realized that I am actually facing the reality of meeting a client with never ending demands. I think this    is actually a training experience for me.

what would be a good design for the invitation?